SMITH A O CORP — Director's Dealing 2026

Feb 17, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2026-02-13

Reporting Person: O'Brien Stephen D. (SVP; Pres & General Mngr NAWH)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-13	Common Stock	M	2905	—	Acquired	6863	Direct
2026-02-13	Common Stock	F	1144	—	Disposed	5719	Direct
2026-02-13	Common Stock	A	791	—	Acquired	6510	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-13	Restricted Stock Units	$0	M	2905	Disposed		Common Stock (2905)	Direct

Footnotes

F1: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F2: Mr. O'Brien is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 59 shares of Common Stock.

F3: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

F4: Represents vesting of performance stock units at [100%] of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

F5: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.